Wall hoister



G. R. WHITE WALL HOISTER March l5, 1960 2 sheets-sheet 1 Filed Dec. 24,1957 [III- CO T INVENTOR Gerome R. White BY a@ M Mmf@ ATTORNEYS March15, 1960 G. R. WHITE 2,928,556

WALL HOISTER Filed Dec. 24, 1957 2 Sheets-Sheet 2 INVENTOR Gerome R.White BY ATTORNEYS WALL HOISTER Gerome R. White, Englewood, NJ.,assignor to United Hoisting Company, Englewood, NJ., a partnershipApplication December 24, 1957, Serial No. 704,921

1 Claim. (Cl. 212-64) This invention relates to hoisting devices, and`in particular it relates to a wall hoister that can be mounted on theoutside of a building under construction by means of support membersvfastened temporarily to the corri-v pleted upper oors of the buildingand that is adapted to be raised upwardly oor by floor as constructionof the building progresses.

The erection of tall buildings, say buildings over three or four storieshigh, requires the use of some type of temporary hoisting device toraise building materials from the ground level to the upper floors ofthe building then under construction. These hoisting devices assume manyforms such as independent truck or track-mounted cranes, temporaryelevator structures erected within or on the exterior of the building,guyed derricks mounted on the steel framework of the building, and thelike. Such hoisting devices,'however, generally speaking are expensiveto procure and are complicated to erect, operate and dismantle. Inaddition, the majority of such temporary hoisting devices require theuse of stabilizing guy cables which necessarily extend over a wide areaand hence are very much in the way of the construction activity. Thisproblem-is especially acute when the building being erected s ofreinforced concrete construction wherein large quantities of concreteforms, reinforcing materials and concrete mix must be raised to the ooror level of the building thenunder construction, and particularly asthis type of construction does not lend itself readily to theinstallation of the usual derrick guy cables.

I have now devised an improved portable hoisting device adapted to bemounted on the outside of a building under construction by means ofsupport members ternporarily fastened to the completed upper floors ofthe building and adapted to be raised upwardly floor by oor asconstruction of the building progresses. My new wall hoister isrelatively simple to erect and to operate, and it does not require theuse of supplementary guy lcables to stabilize the device. Accordingly,it is particularly useful in the erection of reinforced concretebuildings. The Wall hoister of my invention comprises a verticallydisposed pintle member and a horizontally disposed hoist arm rotatablymounted on the upper end ofthe pintle member. At least two pintlesupports detachably mounted in vertical alignment on adjacent oors ofthe building under construction are adapted to releasably engage andsupport the pintle member in a substantially vertical position at apoint on the outside of the building such that the horizontal hoist armis disposed above the level of the floor of the building then beinglaid. A hoist cable is provided one end of which is connected to a hoistwinch and the other member of which is reeved through the pintle memberand over a sheavedisposed at one end of the horizontal hoist arm. Pintleraising means are also provided which are connected to the upper pintlemem` ber support and to the tubular pintle adjacent the lower endthereof, theV pintle raising means being adapted to raise the wallhoister vertically from the level of one oor i 2,928,556 Patented Mar.15, 1960 Fig. l is a side elevation of the wall hoister being erectedand placed in position for use;

Fig. 2 is a side elevation of the wall hoister in position on theuppermost ofthe completed floors of the building in position to be usedfor the construction of the oor next to be laid;

Fig. 3 is a' section along line 3 3 of Fig.` 2 showing the details ofconstruction of one of the pintle supports;

Fig. 4 is a side elevation of the pintle support shown in Fig. 3; and

Fig. 5 is a front elevation of the pintle support shown in Figs. 3 and4. l

As shown best in Figs. 1 and 2 of the drawings, the wall hoister of myinvention isa portable, wall-mounted device which comprises, broadly, avertically disposed tubular pintle 10, a horizontally disposed hoist arm11 vrotatably mounted on the upper end of the pintle 1Q,

port the vertical tubular pintle 10, a hoist cable'13 and Y associatedhoist cable sheaves14 and 15, and means for raising v'thewall hoisterfrom the level of one floor of the building tothe level ofthe floor nextabove as constructionof the building progresses. i

The vertically disposed pintle 10 advantageously Ais fabricated fromheavy duty steel pipe or tubing of sucient length so that when it ismounted on the completed upper floors of the building under constructionthe hoist arm 11 will be positioned above the level of the floor of thebuilding then being laid, and of sufficient strength to withstand thebending and other forces to which the pintle 10 will be subjected whenthe wall hoister is in use. The tubular pintle 10 is provided with alifting eye 17 secured thereto at the lower end thereof, and is furtherformed with a recessed portion 18 adjacent the lower end thereof. Therecessed portion 18 of the pintle 10 is adapted to receive a pintlemounting member which, in turn, is adapted tovsecure the pintle 10 toone of the pintle supports 12. In the Aembodiment of the invention shownin the drawings, the pintle mounting member comprises a pair of mountingbars 20 which iit into therecessed portion 18 of the pintle and whichare secured by means of bolts 21 to the underside of the lowermost o thepintle supports 12.

The horizontally disposed hoist arm 11 advantageously comprises a hollowcenter post 23 from which extend in opposite directions two cantileverarm portions 24 and 25. The lower portion V23a of the hollow center post23 is adapted to litinto the open upper end of the tubular pintle 10,and washers or bearing surfaces 26 are provided between the upper end ofthe pintle 16 and the hoist arm 12 to facilitate rotation of the hoistarm in a 11. The hoist cable 13 is reeved through the tubular pintle 10and the hollow center post 23 and extends over the rst and secondsheaves 14 and 15 as shown in Fig. 2 of the drawing. The end of thehoist cable 13 depending from the second sheave 15 is connected to aconventional y iron ball 30 and hook 31, and the other endV of thehoistV cable is connected to a hoist winch (not shown).

As shown best in Figs. 31 4 and 5 each of-the pintle supports12.advantageously corrlprises` 1WD. longtyilinl frarnevinemb'ers 33connectedbyfaplurality `ofl` a` te r ai .demountable -or removable Aso[thatthe pintle support awstats otally connected toone ofthe pintlesupports 12 secured to the groundfloor 47fofr the building by. means ofthe aforementioned bolts 40 and 42. Afblock and tackle 52temporarilyconnected t'the side of the building and to thertubularpintle as shown in Fig. 1 is employed to raise Vthe` pintle 10 andhorizontal hoist arm 11 to their` normal operating position on theoutside of theA building shown by solid lines iin Fig. 1. A secondpintle 7;' support 12 is then fastened'to the Asecond iloor50a of the ofthe pintlesupportV is providedwitha pair of `demguntf `able yoke orclamp members 35`which,wl 1 enassem -as shown'best in Fig. 3,.,rmlygrasp the tubul `10. The, outermost ofthe lateral `frame members asshownin Figsjs3, 4 and 5, and so that the derjnounti able clamp 'membersV35 canbe positioned about `the pintlelt) as shown in Fig. 3.V The twooutermost o .the lateral frame-'members 34 are also adaptedtfo support`the pintle lmounting member hereinbef'or'e referre'dtofnamely, the twomountingbars show/ min Figs. l 2

through 5 ofthe drawings. r1`he pintle support-12% building by means of,the/aforementioned; bolts 40 and `42,.an d Ythedemountable clampmembers 35 thereof are assembled about the. tubular pintle" 10 fso4 thatthey engage the tubular pintle as Vpreviously described and thusVmaintain the wallhoister in its said operating position. The blockandta'ckle 52- employedl to erect the wall hoister is'then removed.

A third pintle support 12 indicated by dotted lines in .caribepositioned about avetialpQluiIin .0f` thejbililding Fig. I and shown b ysolid lines in Fig. Zis then fastened Ito' the"t hi rdfloor `50bf o 'f`the building means 'of the aforementioned pintle `supportf fastminfg`rnember,` and Y-thedemountableclamp members 3 57arsecure'd about theYtubular pintle 1,0na`s previously described. The aforefurther providedwith a dependent lifting eye 37' ar 1 d with laterallyextending tie-downeyes 38,-

The pintlesupports 12 are securedV to the-completed floors `oftherbuildingfunder ,construction byfmeans of ,pintle support fasteningmembers integrally formed or built in-thefloors of the `buildingwhentheseo'o'rs ,are

.laidor constructed. In the embodiment ofttheinyention mentionedpintleraising means is lthen attached to the liftingY eye 17 ofthepintle'10 and to dependentllifting eye 37 ofthe said thirdpintlesupportlZ, andthe 7g4cable 46.of the said pintle raising means is l'edby the device (not shown). The temporary pivoted connec`- tion betweenthebottom of'rthe pintle ll'andfthe' said first pintle support -12 isremoved, and the pintle raising t means then raises* the wall hoisterupwards tothe point y yat which the pintle mounting `bars 2`0 can`beinserted `7in shown in the drawings the pintlesupport fastening jrnembers comprise a plurality ofbolts-or studsf, ortheirequivalent,embedded ,in thefloor when itis laid. Specifically,

Vtwo boltsor studs 49 are embeddedin theoor ,(orfoor beam) vnear theouter wall of the buildingunder.construef `tion and are carefullypositionedtoab'e received infthe tie-down `eyes 38 of thepintle-supportl'lf- -I r`1 3 addition, two tubes or lengths of pipe A4,1adapted to receive .bolts 42 are embedded in the floor Vin a positionsuchthat the bolts 42 can vbe secured tothe inboardmost Y,of-.the

`lateral frame members 34 ofthe pintle support 1-2.` AThe pintle supportfastening means, of which'lthe bolts' 4 0 and 42 are anadvantageousexarnple, arelocatedin veach floor so that they are all invertical alignmentwith each other. `As a consequence, the pintlesupports`:1`2seci1red thereto are also in verticalalignment with.ea ch `ot h er.

v The wall hoister is further provided with `meansxfor raising thepintle landhoriiontal hoist arrn 11 mounted thereon from the-levelof onefloor ofthe buldingunder .construction tothe level of the;.tloornextabove as conthe pintle raising means advantageously comprises astruction of the building progresses. As shownuin 2, Y

is attached to the dependent vliftinigey'e 3.7 ;o f"the upper#A mostofthe'pintles'upports 12 and the lower block of Ywhich is attachedtoithelifting eye 17` ofithe. pintle` ]1 0. 1

Although the wall hoister of my invention can be em- `ployedin `theerection of any type of multi-.story build- 4ing 1t Visrparticularlyuseful in the constructionof reinforced concrete buildings, and thesetting-up and operation'ofthe `wall;hoister will be describedconnection vwith the erection of such a building.-

in general, in the erection of a` reinforced-concrete building asuitable foundation is rst prepared and the ground floor 47 of thebuilding is then laid. The erection of the building thenproceedsiloorbyroorlwitlr the supporting-columns 48 of-each Vfloor firstbeingpouredi or constructed, followed by the construction Vorlayingofthe Vfloor beams 49 and thefloor 50gitself. lAfter the 'i flower two orthree floors. of thebuilding are.fof riplet ed .the wall hoister is alaid flat onV the ground adjacentfthere- .to :as vindicated `bythe.dotted .lines in Eis t1 zlottnmnd,sinus-.tubularmisil@,103sttmnorarlyfpiw Y d the the` recessedportion'r18 jof the'pintle 101a`nd 'be bolted to'the underside ofthesaidjsecond pintlefsupport 12. T he wally'lioisterv is r 1'o w in.conditionJtobe employed-'in the further construction ofthebuilding. I`The .vertical supporting columns 43;` the oor beams `49 and the oor 50ofthe next story ofthe building (say, the fourthyfloorSGc.) is thenconstructed withl` the aid ofthe wall hoister.' When` the o'or beam 49and the oorwS are' being laid the bolts 40 and the tubes Ylof the pintlesupport fastening member are carefully 'positionedandembedded thereinwhen`` the concrte is poured. Afterwtheponcrete has hardenedand thelaying Qof the oor is completed,a fourth .pintle support 12 (or,advantageously, `the said first pintle"` sup'p`ort4 12`whic h Ahas beenremoved from the Vground fldor`47) is'fastened to the said fourthoor 50cjas indicated by` thefdttd lines in Fig. 2 ofthe drawingQ The clampmembers 35 raising means' in order tosupport the `weight ofrfthe tubularpintle 1 ()and the horizontal hoisterm 11,"tlq1e pintle:mountingrnembers or `bars 20 are lunbolted and removed from theflowermostpintle support '12 `(i.e., the said second pintlesupport 12),the pintle 10 `israised by meansof the `said pintle raisingmeansto `thelevel of ,thelioor 'next' above, andthe'pintle 10'is again secured A,toAone of thexpintlesupportslZ `(i.e., tl 1e ,said third orbars2 0. v.

The foregoing procedure is repeated as construction of fthefbuilding`progresses until nally the, uppermost floor of the building 1scompleted. `After the building is cong- 4 pleted and there is no furtherneed lforfthef vvalfhoister,

thewaiignoister yis d ismoumea freni the v vjau of the building A.andjlowered to. theground by anauiiiliary block? vguide pulley or sheave54 to thehoist winehor equivalent Q jy.

pintle.. support 12) by meansof the mountingmernbers From the foregoing,it will be seen that I have developed an important improvement inhoisting devices adapted to be mounted on buildings under constructionand to be raised iloor by ioor as construction of the buildingprogresses. Moreover, due to the fact that my novel wall hoister ismounted directly on the completed upper oors of the building and that itdoes not require the use of extraneous guy cables, the wall hoister isparticularly useful in the erection of buildings constructed ofreinforced concrete.

I claim:

A wall hoister adapted to be mounted on the outside of a building underconstruction by means of support members fastened temporarily to thecompleted upper floors of the building and to be raised floor by oor asconstruction of the building progresses, the wall hoister comprising avertically disposed tubular pintle, a hori zontally disposed hoist armrotatably mounted on the upper end of the tubular pintle, said hoist armhaving Va hollow center post journalled in the upper end of the tubularpintle, a iirst hoist cable sheave mounted on the horizontal hoist armabove and in line with the vertical axis of said tubular pintle, asecond hoist cable sheave mounted on one end of the horizontal hoistarm, a counterweight mounted on the other end of the hoist arm, a hoistcable one end of which is connected to a hoist winch and the other endof which is reeved through the tubular pintle and hollow center post andover said first and second sheaves, a pintle support fastening memberintegrally formed in each completed oor of the building, said pintlesupport fastening members being n disposed in said oors in-verticalalignment with eachl other and immediately adjacent a vertical column ofthe building, at least two pintle supports detachably mounted on saidpintle support fastening member on adjacent upper floors of thebuilding, each of said pintle supports comprising two longitudinal framemembers disposed on either side of the said vertical column of thebuilding and connected by a plurality of lateral frame members,

means connected to the upper pintle support and to the V` pintleadjacent the lower end thereof, said pintle raising means being adaptedto raise the pintle vertically from theY level of one oor to the levelof the oor next above upon completion of said oor then being laid.

References Cited in the le of this patent UNTED STATES PATENTS Y 873,374Jenkins Dec. 10, 1907 FOREIGN PATENTS 473,789 France Oct. 15, 1914

